Hong Kong Geop­ark

Sai Kung is the gate­way to the city’s UN­ESCO-cer­ti­fied Geop­ark. Fas­ci­nat­ing land­scapes are just a boat ride away: Take a trip out to the Ninepin Is­lands to see their stun­ning hexag­o­nal rock col­umns. Sai Kung Pier. 4-hour boat tours from $1,800 for 6-7 peo­ple, Sai Kung Yacht As­so­ci­a­tion, 9167-4941.